PCA9485
Overview
The PCA9485 is a highly integrated switched-capacitor converter with an embedded OVPFET and dual external FET controls, targeted to provide the quadruple output current for the fast charging applications with a 1-cell battery. The device works in 4:1 switching operation with an extremely high efficiency (around 96.8 %, at VOUT = 4.5 V, IOUT = 8 A), in 1:4, 2:1 and 1:2 switching operation or in 1:1 mode with forward and reverse direction.
- Dual-phase switched-capacitor to optimize efficiency
- Integrated 4:1, 2:1 switched capacitor charger for single cell battery including 1:1 bypass
- Reverse operation mode, such as 1:4, 1:2 and reverse bypass from VOUT to VIN
- 96.8 % efficiency at VOUT = 4.5 V and IVOUT = 8 A
- Wide range of input voltage - From 6 V to 10.5 V in 2:1 switching operation mode - From 12 V to 21 V in 4:1 switching operation mode
- An OVPFET with IVIN and VBAT regulation loop
- External FET gate control for GaN and CMOS - Support dual input via USB and wireless powe
